cmm

#### Scan/Hit Path Tab - TTP Free Form Plane Strategy

Use the Scan/Hit Path tab for the TTP Free Form Plane strategy to:

- Display scan points and move points

- Import scan points and move points from a text file

- Export scan points and move points to a text file

- Insert a move point or break point

- Remove a point from the scan path or hit path

- Add a point from the scan path to the hit path

For example:

Sample Scan Path tab

The following items appear in the points list area:

- # - A number that identifies the generated point

- X, Y, and Z - The XYZ values

When you click on any point in the scan path, PC-DMIS highlights the point on the CAD surface. For example:

Example of highlighted point on CAD surface

To perform additional functions, right-click in the points list area. The following options appear:

Points List options

Import - To import the scan points and move points from a text file, select this option. The path of the scan can be dynamically read from a text file when you run the measurement routine. This can help to scan the plane on variants of the part where the shape of the face being scanned is changed between variants.

Following is a sample of a partial text file:

-32.23,14.067,-0.001,SCAN

-29.2,6.684,-0.006,SCAN

-24.389,1.846,-0.008,SCAN

-19.309,-3.982,-0.004,SCAN

-15.327,-8.125,-0.004,SCAN

-9.949,-9.576,-0.004,SCAN

-4.838,-11.112,-0.001,SCAN

6.786,-10.431,-0.005,SCAN

12.121,-4.769,-0.003,SCAN

17.941,1.332,-0.005,SCAN

21.889,7.432,-0.002,SCAN

26.623,10.02,-0.004,SCAN

0,0,0,BREAK

27,10,50,MOVE

30.361,9.192,-0.003,SCAN

In this sample:

1. - SCAN - Indicates a point that will be added to the scan.

   - BREAK - Indicates a move to the Retract, and then another scan will begin at the next SCAN point.

   - MOVE - Indicates a move to the location specified.

Export - To export the scan path to a text file, select this option.

Insert Sector End - To insert a sector end between scan points, select this option. As a result, PC-DMIS will create "sectors". Sector end points in the scan path are generated when the path is not continuous due to any reason.

Insert Move - To insert a move point to avoid an obstacle, select this option. Move points in the scan path can help to scan a face as one single plane even if the path is not continuous due to any reason. The Insert Point dialog box appears:

Insert Point dialog box

You can position the probe and click Probe Pos to insert a move point at that location.

Remove - To delete one point, highlight it in the points list area, right-click, and then select this option.

Clear - To delete all points, right-click in the points list area and then select this option. When the "Remove all points?" message appears, click OK.

Select in Hit Path - To add a point to the hit path (and highlight the point), right-click on the path, and select Select in Hit Path.

Un-select From Hit path - To remove the point from the hit path, select this option.